Measure each phase metal mask, metalsleeve to ground insulation resistance.
测量每相金属屏蔽、金属套与大地之间的绝缘电阻。
2
Measure each phase conductor to metal mask and to metalsleeve insulation resistance.
测量每相导体与金属屏蔽、金属套间的绝缘电阻。
3
Cable inner end must use steel nut cap. Lead sealing is required for the sealing between the cable inner head and metalsleeve, which has a good sealing property.